Gas distribution device

Abstract

The invention provides a gas distribution device. The gas distribution device comprises a shell and a turbulent flow structure, a gas distribution cavity is formed in the shell, a gas inlet and at least two gas output ports which are communicated with the gas distribution cavity are formed in the shell, the turbulent flow structure is arranged in the gas distribution cavity, and at least part of projection of the gas inlet falls into the turbulent flow structure in the direction of the gas inlet. According to the gas distribution device, gas enters the gas distribution cavity through the gas inlet and then is output through the plurality of gas output ports, so that one path of gas is split into multiple paths of gas.

Description

Technical Field

[0001] The present application relates to the technical field of gas distribution, and in particular to a gas distribution device. Background Art

[0002] The single-channel anesthesia machines currently available on the market can usually only provide anesthesia to one target. If anesthesia is required for multiple targets, multiple single-channel anesthesia machines or multi-channel anesthesia machines are required, which increases the cost. Summary of the invention

[0003] In order to solve the above problems, the present application provides a gas distribution device, which can split one path (anesthetic) gas into multiple paths (anesthetic) gas.

[0004] The present application provides a gas distribution device, which includes: a shell and a spoiler structure; a gas distribution chamber is provided inside the shell, and a gas inlet and at least two gas output ports connected to the gas distribution chamber are provided, and the spoiler structure is arranged in the gas distribution chamber, and in the direction along the gas inlet, the projection of the gas inlet at least partially falls into the spoiler structure.

[0005] In the present application, after the gas enters the gas distribution chamber through the gas inlet, it is output through multiple gas outlets, thereby splitting one gas into multiple gas outlets. In addition, since the positions, directions, and distances to the gas inlet of the multiple gas outlets are different, the gas flow output from the multiple gas outlets is not uniform. The flow disturbance structure can disrupt the flow direction of the gas and further make the gas flow output from the multiple gas outlets tend to be uniform.

[0006] In some embodiments, a gas confluence chamber is further provided inside the shell, and the gas confluence chamber and the gas distribution chamber are independent of each other. The shell also has an exhaust gas outlet connected to the gas confluence chamber and at least two exhaust gas inlets, and the at least two exhaust gas inlets correspond one to one with the gas output port.

[0007] In some embodiments, the shell is provided with at least two intubation interfaces, which include a cylindrical inner interface and an outer interface, wherein the outer interface is arranged outside the inner interface for docking with a tracheal tube, and the at least two intubation interfaces, at least two gas output ports and at least two waste gas inlets correspond one to one, wherein the gas output port is connected to the area enclosed by the inner interface, and the waste gas inlet is connected to the area enclosed by the inner interface and the outer interface.

[0008] In some embodiments, the shell includes a bottom wall, a top cover, and a side wall connecting the bottom wall and the top cover, at least two gas output ports and at least two exhaust gas inlets are arranged on the side wall, and the shell also includes a partition, which is connected to the side wall and is located between the at least two gas output ports and the at least two exhaust gas inlets, so that the area between the partition and the bottom wall forms a gas confluence chamber, and the area between the partition and the top wall forms a gas distribution chamber.

[0009] In some embodiments, the housing is 3D printed.

[0010] In some embodiments, the partition includes a first portion and a second portion connected to each other, the first portion is connected to the side wall, and the second portion is connected to the bottom wall.

[0011] In some embodiments, the spoiler structure includes a spoiler, and the angle between the normal direction of the spoiler and the extension direction of the gas inlet is less than 25 degrees. In some embodiments, the spoiler is provided with a spoiler hole.

[0012] In some embodiments, the gas inlet is arranged on the side wall, the spoiler is connected to at least one of the bottom wall and the top wall, and the distance from the spoiler to the gas inlet is not less than 5 mm and not more than 20 mm, and the width of the spoiler is not less than 8 mm and not more than 20 mm.

[0013] In some embodiments, the shell includes a first air pipe interface and a second air pipe interface which are cylindrical and spaced apart, the gas inlet is located in the first air pipe interface, and the exhaust gas outlet is located in the second air pipe interface.

[0014] In some embodiments, the gas distribution device further comprises a plug, which blocks at least one of the gas outlet and the waste gas inlet when the plug is assembled on the cannula interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a gas distribution device according to one or more embodiments; Figure 2 for Figure 1 A schematic cross-sectional view of the gas distribution device along the AOB; Figure 3 for Figure 1 A schematic cross-sectional view of a gas distribution device along the AOC; Figure 4 for Figure 1 A schematic cross-sectional view of a gas distribution device along the BOC; Figure 5 for Figure 1 A schematic cross-sectional view of a gas distribution device perpendicular to the height direction; Figure 6 is a schematic structural diagram of a spoiler according to one or more embodiments; Figure 7 The figure is a schematic diagram showing the principle of assembling a plug to a pipe interface according to one or more embodiments.

[0016] Description of reference numerals: Gas distribution device 1, Shell 10, gas distribution chamber 101, gas inlet 102, gas outlet 103, gas confluence chamber 104, exhaust gas outlet 105, exhaust gas inlet 106, Intubation interface 110, inner interface 110a, outer interface 110b, bottom wall 111, top cover 112, side wall 113, partition 114, first part 114a, second part 114b, first trachea interface 115, second trachea interface 116, The spoiler structure 20, the spoiler sheet 21, the spoiler hole 210, the spoiler protrusion 211, Plug 5. DETAILED DESCRIPTION

[0017] The present application will be further described below in conjunction with the accompanying drawings and some embodiments. The following embodiments are mainly used to exemplarily illustrate the technical solution of the present application, and therefore cannot be used to limit the protection scope of the present application.

[0018] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those commonly understood by technicians in the technical field to which this application belongs; the terms used herein are mainly used to describe specific embodiments and are not intended to limit this application; the terms "include", "have", "comprise" and other synonyms with the same or similar meanings in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0019] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are mainly used to distinguish different objects, and should not be understood as explicitly or implicitly indicating the relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0020] In this article, the specific features, structures or characteristics described in any embodiment may be included in at least one embodiment of the present application or a combination of at least two embodiments. It will be understood by those skilled in the art that the embodiments described herein may be combined with other embodiments in this article or other embodiments outside this article.

[0021] In the description of the embodiments of the present application, technical terms used to indicate orientation or positional relationships, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are mainly used to facilitate the description of the embodiments of the present application and simplify the description, and are not considered to mean that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0022] In the various embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "set", "install", "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense. Taking connection as an example, it may include fixed connection, detachable connection or integral molding; it may also include at least one of mechanical connection and electrical connection; it may include direct connection or indirect connection through an intermediate medium. A person of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present application according to the specific circumstances.

[0023] See also Figure 1 , Figure 2 and Figure 3 The present application provides a gas distribution device 1, wherein a housing 10 has a gas distribution chamber 101 therein, and is provided with a gas inlet 102 and at least two gas outlets 103 connected to the gas distribution chamber 101. The number of gas outlets 103 may be 2, 3, 4, 5, 6 or more. After the gas enters the gas distribution chamber 101 through the gas inlet 102, it is output through the multiple gas outlets 103, thereby splitting one path of gas (e.g., anesthetic gas) into multiple paths of gas.

[0024] The inventor of the present application has found through research that the gas outputs from the multiple gas output ports 103 are often not uniform due to differences in position, orientation, and distance to the gas inlet 102. To solve the above problem, the inventor of the present application has added a flow disturbance structure 20 in the housing 10 to disrupt the flow direction of the gas.

[0025] According to one or more embodiments of the present application, the flow-disturbing structure 20 is disposed in the gas distribution chamber 101 to disrupt the flow direction of the gas entering through the gas inlet 102. In the direction along the gas inlet 102, the projection of the gas inlet 102 at least partially falls into the flow-disturbing structure 20. In the above manner, the gas flow outputted by the multiple gas outlets 103 can be made uniform.

[0026] See also Figure 4, a gas confluence chamber 104 may also be provided inside the housing 10. The gas confluence chamber 104 and the gas distribution chamber 101 are independent of each other, and the housing 10 is further provided with an exhaust gas outlet 105 and at least two exhaust gas inlets 106 connected to the gas confluence chamber 104, and the at least two exhaust gas inlets 106 correspond one to one with the gas output port 103. In this case, the gas distribution device 1 can not only realize the splitting of one gas into multiple gases, but also realize the collection and recovery of multiple gases.

[0027] According to one or more embodiments of the present application, the housing 10 is provided with at least two cannula interfaces 110 for docking a tracheal cannula. The tracheal cannula is composed of an inner tube and an outer tube, the space inside the inner tube is used to transport anesthetic gas, and the space between the inner tube and the outer tube is used to transport waste gas exhaled by the target (e.g., a small animal) during anesthesia.

[0028] Therefore, the intubation interface 110 may include a cylindrical inner interface 110a and an outer interface 110b, and the outer interface 110b is arranged around the outer periphery of the inner interface 110a. There are at least two intubation interfaces 110, at least two gas output ports 103 and at least two waste gas inlets 106 corresponding to each other. That is to say, the inner interface 110a can be used to connect to the inner tube of the endotracheal intubation, and the outer interface 110b can be used to connect to the outer tube of the endotracheal intubation. Among them, the gas output port 103 is connected to the area enclosed by the inner interface 110a, and the waste gas inlet 106 is connected to the area enclosed by the inner interface 110a and the outer interface 110b. In this case, the anesthetic gas output by multiple gas output ports 103 enters the inner tube through the inner interface 110a, and then anesthesia is performed for multiple targets, while the waste gas exhaled by multiple targets enters the waste gas inlet 106 through the outer tube, and then converges in the gas confluence chamber 104, and finally the waste gas is collected and processed through the waste gas outlet 105 (see Figure 4 ). In addition, the gas distribution device 1 of the present application has both gas path splitting function and waste gas recovery function, and is compact in size, convenient for arrangement and storage, and is very suitable for anesthesia experiments.

[0029] See also Figure 3 and Figure 4 The housing 10 includes a bottom wall 111, a top cover 112, and a side wall 113 connecting the bottom wall 111 and the top cover 112. The bottom wall 111, the top cover 112, and the side wall 113 may be an integral structure or an assembled structure. The shapes of the bottom wall 111, the top cover 112, and the side wall 113 may also be flat or non-flat, so that the housing 10 may be cylindrical (such as a prism or a cylinder), spherical, or other shapes. The gas outlet 103 and the exhaust gas inlet 106 may be arranged on the side wall 113.

[0030] The shell 10 also includes a partition 114, which is connected to the side wall 113 and is located between at least two gas output ports 103 and at least two exhaust gas inlets 106, so that the area between the partition 114 and the bottom wall 111 forms a gas confluence chamber 104, and the area between the partition 114 and the top wall forms a gas distribution chamber 101. For example, multiple gas output ports 103 can be spaced apart from multiple exhaust gas inlets 106, and the partition 114 can be connected between the gas output ports 103 and the exhaust gas inlets 106, and divide the space inside the shell 10 into two upper and lower chambers (i.e., the gas confluence chamber 104 and the gas distribution chamber 101). Of course, the partition 114 can also be partially connected to the side wall 113, and the other part is connected to the bottom wall 111 or the top cover 112. In this case, the partition 114 can still divide the space inside the shell 10 into two chambers.

[0031] According to one or more embodiments of the present application, the housing 10 is formed by 3D printing. As described above, the structure of the housing 10 may be relatively complex (two independent cavities), and it may not be possible to form the housing 10 in one piece by conventional machining or mold processing. If a splicing structure is used, it may lead to increased costs or an unsightly appearance. However, 3D printing can take into account both economy and aesthetics.

[0032] See also Figure 2 , the partition 114 includes a first portion 114a and a second portion 114b connected to each other, the first portion 114a is connected to the side wall 113, and the second portion 114b is connected to the bottom wall 111. In this case, the first portion 114a, the second portion 114b of the partition 114 and a portion of the bottom wall 111 define a gas confluence chamber 104. Since the gas confluence chamber 104 is only connected to the outside through the exhaust gas inlet 106 and the exhaust gas outlet 105, it is difficult to process the gas confluence chamber 104 by machining or mold processing. Therefore, using 3D printing is a feasible way. However, there are some problems with the 3D printing method. For example, when printing the partition 114, the bottom thereof is suspended (the gas confluence chamber 104). Therefore, it is necessary to print a temporary support structure in the area where the gas confluence chamber 104 is located before printing the partition 114, and then print the partition 114 on the support structure. After the shell 10 is finalized, the support structure is crushed and removed from the exhaust gas outlet 105 or the exhaust gas inlet 106. Compared with the structure in which the partition 114 is completely connected to the side wall 113, the structure in which the partition 114 is partially connected to the bottom wall 111 reduces the volume of the gas confluence chamber 104, that is, reduces the volume of the suspended partition 114 (the first part 114a) and the corresponding support structure, reduces the printing time, and also reduces the time to remove the support structure after printing, thereby improving production efficiency.

[0033] See also Figure 5 and Figure 6The spoiler structure 20 includes a spoiler 21, and the angle between the normal direction of the spoiler 21 and the extension direction of the gas inlet 102 is less than 25 degrees. The extension direction of the gas inlet 102 can also be the direction in which the anesthetic gas enters the gas distribution chamber 101. The angle between the normal direction of the spoiler 21 and the gas inlet 102 can be 0 to 8 degrees, 8 to 12 degrees, 12 to 18 degrees or 18 to 25 degrees. For example, the angle between the spoiler 21 and the gas inlet 102 can be 7.5 degrees, 8.9 degrees, 15.3 degrees or 20 degrees. In this way, the spoiler 21 can disrupt the flow direction of the gas and improve the problem of large differences in the amount of gas output from each gas output port 103.

[0034] See also Figure 6 , a spoiler hole 210 is provided on the spoiler 21. The spoiler 21 may have a spoiler plane facing the gas inlet 102. The existence of the spoiler hole 210 can reduce the problem of a dead angle on the back of the spoiler 21 or a small or uneven air flow on the back of the spoiler 21 due to the shielding of the spoiler 21. In this case, the flow direction of the gas can be further disrupted, and the problem of large differences in the air flow output by each gas output port 103 can be improved.

[0035] In some embodiments, a spoiler protrusion 211 adjacent to the spoiler hole 210 may be provided on the spoiler plane. The number of the spoiler protrusions 211 may be at least two, and they are provided on both sides of the spoiler hole 210. The spoiler hole 210 may further be elongated. The spoiler protrusion 211 may be in a long strip shape and be arranged roughly parallel to the spoiler hole 210. In addition, the extension direction of the spoiler protrusion 211 may be parallel to the height direction of the spoiler sheet 21.

[0036] According to one or more embodiments of the present application, the gas inlet 102 is provided on the side wall 113, and the spoiler 21 is connected to at least one of the bottom wall 111 and the top wall. The height direction of the spoiler 21 may be the direction from the bottom wall 111 to the top cover 112.

[0037] Considering that the distance between the spoiler 21 and the gas inlet 102 is too large or too small, it is possible that a good spoiler effect cannot be achieved. Optionally, the distance between the spoiler 21 and the gas inlet 102 is not less than 5 mm and not more than 20 mm. Similarly, if the spoiler 21 is wide, the blocking effect of the spoiler 21 will cause uneven airflow in the area blocked by it and other areas, which may increase the difference in the amount of airflow output between each gas output port 103. Optionally, the width of the spoiler 21 is not less than 8 mm and not more than 20 mm.

[0038] According to one or more embodiments of the present application, the housing 10 includes a first tracheal interface 115 and a second tracheal interface 116 which are cylindrical and spaced apart, the gas inlet 102 is located in the first tracheal interface 115, and the waste gas outlet 105 is located in the second tracheal interface 116. In this case, it is convenient to connect an external gas source device (such as an anesthesia machine) to the gas inlet 102 and the waste gas outlet 105 through a pipeline.

[0039] like Figure 1 As shown, the gas distribution device 1 involved in the present application can split one path of anesthetic gas into five paths of anesthetic gas, and thus can provide anesthesia for five targets at the same time. If the number of targets that need to be anesthetized is less than five, the intubation interface 110 can be temporarily blocked by the plug 5. If the unused gas outlet 103 is not blocked, the anesthetic gas may flow into the air through the outlet, which causes waste and has certain risks. If there is a waste gas inlet 106 that is not blocked, the waste gas that flows into the gas confluence chamber 104 through other waste gas inlets 106 may flow into the air through the waste gas inlet 106, which may also pollute the air. See Figure 7 The gas distribution device 1 further comprises a plug 5, which blocks at least one of the gas output port 103 and the waste gas inlet 106 when assembled on the cannula interface 110. Preferably, the plug 5 can block both the gas output port 103 and the waste gas inlet 106 when assembled on the cannula interface 110.

[0040] Finally, it should be noted that: the above embodiments are mainly used to illustrate the technical solutions of the present application, and should not be understood as limiting the present application; the above embodiments exemplarily illustrate the present application in detail and specifically, and ordinary technicians in this field can modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein; and these modifications or replacements cannot make the corresponding technical solutions and the technical solutions of the present application constitute different inventions, and therefore should all be included in the scope of the claims and specification of the present application. In particular, in the absence of structural conflicts or combination obstacles, the various technical features mentioned in each embodiment can be combined in any way, and the technical solutions formed by these combinations should still not be considered to be out of the scope of the technical solutions of the present application in essence.

Claims

1. A gas distribution device, characterized in that: include: The shell has a gas distribution cavity inside, and is provided with a gas inlet and at least two gas outlets connected to the gas distribution cavity. The spoiler structure is arranged in the gas distribution chamber, and in the direction along the gas inlet, the projection of the gas inlet at least partially falls into the spoiler structure.

2. The gas distribution device according to claim 1, characterized in that: A gas confluence chamber is also provided inside the shell, and the gas confluence chamber and the gas distribution chamber are independent of each other. The shell is further provided with an exhaust gas outlet and at least two exhaust gas inlets communicated with the gas confluence chamber, and the at least two exhaust gas inlets correspond to the gas output ports one by one.

3. The gas distribution device according to claim 2, characterized in that: The housing is provided with at least two intubation interfaces, the intubation interfaces include a cylindrical inner interface and an outer interface, the outer interface is arranged around the outer periphery of the inner interface for docking the tracheal intubation, The at least two intubation interfaces, the at least two gas outlets and the at least two waste gas inlets correspond to each other one by one, wherein the gas outlet is connected to the area enclosed by the inner interface, and the waste gas inlet is connected to the area enclosed by the inner interface and the outer interface.

4. The gas distribution device according to claim 2, characterized in that: The housing comprises a bottom wall, a top cover and a side wall connecting the bottom wall and the top cover, the at least two gas outlets and the at least two exhaust gas inlets are arranged on the side wall, The shell also includes a partition, which is connected to the side wall and is located between the at least two gas output ports and the at least two exhaust gas inlets, so that the area between the partition and the bottom wall forms the gas confluence chamber, and the area between the partition and the top wall forms the gas distribution chamber.

5. The gas distribution device according to claim 4, characterized in that: The shell is formed by 3D printing.

6. The gas distribution device according to claim 5, characterized in that: The partition includes a first portion and a second portion connected to each other, wherein the first portion is connected to the side wall, and the second portion is connected to the bottom wall.

7. The gas distribution device according to claim 1, characterized in that: The spoiler structure comprises a spoiler, and the angle between the normal direction of the spoiler and the extension direction of the gas inlet is less than 25 degrees; And / or, the spoiler is provided with spoiler holes.

8. The gas distribution device according to claim 8, characterized in that: The gas inlet is arranged on the side wall, the spoiler is connected to at least one of the bottom wall and the top wall, and the distance from the spoiler to the gas inlet is not less than 5 mm and not more than 20 mm, and the width of the spoiler is not less than 8 mm and not more than 20 mm.

9. The gas distribution device according to claim 2, characterized in that: The shell includes a first air pipe interface and a second air pipe interface which are cylindrical and spaced apart. The gas inlet is located in the first air pipe interface, and the exhaust gas outlet is located in the second air pipe interface.

10. The gas distribution device according to claim 3, characterized in that: The gas distribution device further comprises a plug, which blocks at least one of the gas output port and the waste gas inlet when the plug is assembled on the cannula interface.

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